2. PURE Bioscience ( PURE) is a bioscience-technologies company. PURE Bioscience's stock spiked to a 52-week high of $3.74 in April after the company said it received U.S. Environmental Protection Agency registration for silver dihydrogen citrate, or SDC, a disinfectant and food-contact-surface sanitizer. In June, PURE Bioscience said it was added to the Russell 3000 Index and Russell 2000 Index, although the stock fell after the announcement.

Altman Z-score: 69.80

Closing Price: $2.68 (Aug. 4)

2010 Total Return: 84.8%

Current Ratio: 5.80, which indicates PURE Bioscience would be able to pay off its short-term obligations should they come due now.

Consensus: Two analysts cover PURE Bioscience, and they are split in their view. EVA Dimensions has a "sell" rating on shares, while Griffin Securities recommends that investors buy the stock. Griffin has an $8 price target on PURE Bioscience shares.

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